OPTIMIZTION OF MICROWAVE ASSISTED EXTRACTION OF PHYTOCOMPOENTS FROM HELIANTHUS TUBEROSUS AND APIUM GRAVEOLENS Journal title: ISB-INMA TEH AGRICULTURAL AND MECHANICAL ENGINEERING Authors: Sorin Avramescu, M. Drugulescu, N. Babeanu, C. Dinu-Pirvu, I. Moraru, A. Ortan Subject(s):